I received as a Christmas present a Paragon Rolling Thunder EMD E9 Sou #198 (5810). The engine does not seem to run properly on the layout. The speed is very unsteady and time the RPMs sounds are extremely high for the very slow speeds on a flat surface. The engine is very jerky and unsteady with speeds. No other engine on the layout has this problem, which makes me think it is a problem with the Paragon Unit. DCC is NEC Power Cab. CV6= 120, CV10=1 Suggestions/advice appreciated. Wayne
I would perform a factory reset on the decoder. There are a lot of things that could be wrong here. What are the momentum settings? Does it do this when running light (no cars behind it)? Have you changed Back EMF CVs? Are you sure the issue is DCC, or could it possibly be a mechanical fault in the drivetrain? It could also be a faulty decoder. Paragon 3 decoders can be buggy, with many quality control issues. You may have to send it back for repair, or replace it with an ESU or Tsunami decoder.
Sounds like a mechanical problem to me, either intermittent meshing of the gears or a gear slipping on a shaft. Me, too.
